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EN 1.4590 Stainless Steel vs. Grey Cast Iron

Both EN 1.4590 stainless steel and grey cast iron are iron alloys. They have 83% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4590 stainless steel and the bottom bar is grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 26
9.6
Fatigue Strength, MPa 190
69 to 170
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
69
Shear Strength, MPa 310
180 to 610
Tensile Strength: Ultimate (UTS), MPa 480
160 to 450
Tensile Strength: Yield (Proof), MPa 270
98 to 290

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1180
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 26
46
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.5
1.5
Embodied Energy, MJ/kg 37
21
Embodied Water, L/kg 120
44

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
13 to 37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
27 to 240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
5.8 to 17
Strength to Weight: Bending, points 18
8.7 to 17
Thermal Diffusivity, mm2/s 7.0
13
Thermal Shock Resistance, points 17
6.0 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
3.1 to 3.4
Chromium (Cr), % 16 to 17.5
0
Iron (Fe), % 79.7 to 83.7
92.1 to 93.9
Manganese (Mn), % 0 to 1.0
0.5 to 0.7
Niobium (Nb), % 0.35 to 0.55
0
Phosphorus (P), % 0 to 0.040
0 to 0.9
Silicon (Si), % 0 to 1.0
2.5 to 2.8
Sulfur (S), % 0 to 0.015
0 to 0.15
Zirconium (Zr), % 0 to 0.15
0